Achieving Unassailable Pipeline Integrity

DNV’s network of 300+ pipeline experts use our proprietary CGReal™ technology to turn your multi-run in-line inspection (ILI) data into statistically defensible corrosion growth rates along the entire length of your pipeline.

DNV’s CGReal™ analysis combines advanced statistics, engineering expertise, and expert ILI signal review to identify where corrosion is active, how fast it’s growing, and when action is truly required. 

Key Benefits  

  • Confirms real corrosion growth and identifies critical anomalies early 
  • Justifiable rates and quantifies and corrects ILI tool bias 
  • Optimizes digs, inspections, and reassessment intervals 
  • Produces regulator-defensible results 
  • Able to compare multiple ILI tool technologies 

Real world use case 

A major pipeline operator managing a multi-system ILI program needed to determine whether apparent corrosion growth across multiple segments was real or the result of tool variability. 

DNV applied its CGReal™ corrosion growth analysis across 100+ pipeline segments, integrating advanced statistical screening with expert ILI signal review. Tool bias was quantified and corrected, and joints with true, statistically significant corrosion growth were isolated from noise.  

The Results
  • Confirmed where corrosion was active—and where it was not 
  • Identified critical anomalies requiring action prior to the next inspection 
  • Reduced unnecessary field inspections and digs 

The operator gained clarity, confidence, and defensibility—enabling integrity decisions that stood up to internal review and regulatory scrutiny, without relying on overly conservative assumptions.

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Used by Major North American Pipeline Operators • Multi-Run ILI Specialists • Engineering & Statistics Combined • Regulator-Defensible Results

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